• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia

Trendingnow

1

OpenAI says its AI models secretly broke out of a secure test environment and hacked into AI company Hugging Face in order to cheat on an evaluation

2

Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock

3

Mathematicians grapple with a ‘very rapid and very unsettling change’ as AI cracks yet another century-old problem

1

OpenAI says its AI models secretly broke out of a secure test environment and hacked into AI company Hugging Face in order to cheat on an evaluation

2

Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock

3

Mathematicians grapple with a ‘very rapid and very unsettling change’ as AI cracks yet another century-old problem
Tech

Steve Ballmer: Twitter Taught Me That I Don’t Want To Be An Investor

By
Leena Rao
Leena Rao
Down Arrow Button Icon
By
Leena Rao
Leena Rao
Down Arrow Button Icon
March 10, 2016, 1:10 AM ET
Add Fortune on Google for similar content.

Ex-Microsoft CEO Steve Ballmer may have thought Twitter was a good bet. But his appetite for investing isn’t quite what it once was.

In October, Ballmer bought a major stake in Twitter that made him a bigger stakeholder at the time than current Twitter CEO and founder Jack Dorsey. In announcing the investment, he tweeted “glad I bought 4% past few months” and also praised Dorsey for making the company leaner and more focused.

Asked Wednesday night about his Twitter stake, Ballmer said it has helped to teach him a lesson.

“I don’t want to be an investor,” he said sheepishly at the Fortune Brainstorm Tech dinner in San Francisco.

Ballmer, who is now the owner of the Los Angeles Clippers, admitted he’s actually lost money on Twitter—at least on paper. Its shares have fallen nearly 45% since his announcement.

Still, Ballmer reiterated his belief in Twitter (TWTR) on Wednesday, telling Fortune’s assistant managing editor Adam Lashinsky: “I think it is a very good brand, but its cost structure and product can be improved. It’s better to invest in things that have a path to improvement.”

Ballmer still holds stock in Microsoft, although he’s no longer considered an “insider,” or someone who holds knowledge of a company’s internal affairs and must report every trade publicly. “I see no reason to sell the stock unless I give it away or if it’s going to tank,” he said. “I prefer to be a holder and I believe in that.”

 

Ballmer does have one bone to pick with Microsoft: He believes the company should reveal more financial details about its enterprise cloud business. It’s an amusing thought because, while CEO, he failed to provide that same information.

“We should be able to see what revenue and gross margin is for the cloud services, for the hardware, and for the software,” Ballmer argued on Wednesday.

As for whether Microsoft is swayed by the request, Ballmer said that the company believes it has “sufficient disclosures.”

Having said that, Ballmer acknowledged that he’s not exactly close to Microsoft co-founder Bill Gates. Since “retirement,” he said that he’s barely seen Gates.

“We’ve gone on our own paths and don’t see each other much,” Ballmer said. “But our wives spent time together today, and that’s a good thing.”

About the Author
By Leena Rao
See full bioRight Arrow Button Icon
Add Fortune on Google for similar content.

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • World's Most Admired Companies
  • See All Rankings
  • Lists Calendar
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • About Us
  • Press Center
  • Work At Fortune
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • TikTok icon
  • YouTube icon

Latest in Tech

‘It’s called StreetEasy, not StreetHard’: Mamdani cracks down on scourge of ‘housefishing’ and ‘real estate slop’
Real EstateHousing
‘It’s called StreetEasy, not StreetHard’: Mamdani cracks down on scourge of ‘housefishing’ and ‘real estate slop’
By Tatiana SatauaJuly 22, 2026
15 minutes ago
As Washington panics about Chinese AI, Jensen Huang says open-source models like Kimi are ‘excellent’ and should be embraced, not banned
AIChina
As Washington panics about Chinese AI, Jensen Huang says open-source models like Kimi are ‘excellent’ and should be embraced, not banned
By Marco Quiroz-GutierrezJuly 22, 2026
19 minutes ago
OpenAI CEO Sam Altman sits next to U.S. President Donald Trump.
AITech regulation
OpenAI’s rogue hacking incident was a warning shot. Will it be a wake-up call to finally create AI safety regulation?
By Jeremy Kahn and Emily ForliniJuly 22, 2026
33 minutes ago
Man holding his hands open
InvestingStock
A new group of stocks is transforming global equities markets. Meet ‘Memi,’ the $3 trillion sector fueled by AI’s insatiable hunger for memory chips
By Amanda GerutJuly 22, 2026
1 hour ago
Sam Altman getting into a car
CybersecurityOpenAI
OpenAI’s models went rogue and hacked Hugging Face. It’s a wake-up call, experts say, but more concerning behavior may be next
By Beatrice NolanJuly 22, 2026
1 hour ago
Northrop Grumman launches private robot mission to strap jetpacks on aging satellites
InnovationSpaceX
Northrop Grumman launches private robot mission to strap jetpacks on aging satellites
By Marcia DunnJuly 22, 2026
4 hours ago

Most Popular

OpenAI says its AI models secretly broke out of a secure test environment and hacked into AI company Hugging Face in order to cheat on an evaluation
Cybersecurity
OpenAI says its AI models secretly broke out of a secure test environment and hacked into AI company Hugging Face in order to cheat on an evaluation
By Jeremy Kahn and Emily ForliniJuly 21, 2026
1 day ago
Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock
Success
Mark Cuban says he has the solution to growing income inequality, and it's to reward every employee—from CEO to janitor—with company stock
By Sasha RogelbergJuly 20, 2026
2 days ago
Mathematicians grapple with a ‘very rapid and very unsettling change’ as AI cracks yet another century-old problem
AI
Mathematicians grapple with a ‘very rapid and very unsettling change’ as AI cracks yet another century-old problem
By Eva RoytburgJuly 21, 2026
1 day ago
Despite a $156 million contract, Knicks star Jalen Brunson still calls his parents for financial advice any time he makes a big purchase
Success
Despite a $156 million contract, Knicks star Jalen Brunson still calls his parents for financial advice any time he makes a big purchase
By Emma BurleighJuly 21, 2026
1 day ago
‘I want to die broke’: Billionaire philanthropist Denny Sanford dies after giving away $4 billion
Success
‘I want to die broke’: Billionaire philanthropist Denny Sanford dies after giving away $4 billion
By Sydney LakeJuly 20, 2026
2 days ago
'The audience is telling the industry something': even IMAX is stunned by Christopher Nolan's runaway 'Odyssey'
Arts & Entertainment
'The audience is telling the industry something': even IMAX is stunned by Christopher Nolan's runaway 'Odyssey'
By Tatiana SatauaJuly 21, 2026
1 day ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.